Unified dynamic resource supply model to support cyber physical system

Cyber Physical System (CPS) is a complex research field with plenty of challenges. The Dynamic Resource Supply Model(DRSM) we proposed before can describe the resources and support manipulation of resources in CPS to handle all resource allocations. However after extensively investigating past research results about resource specifications and allocations, we realize the DRSM is not sufficient for resource usage due to the insufficiency of previous Resource Operating Decision Machine (RODM). In particular, two modules: Context Manager and Decision Engine we proposed have no detailed mechanism on how to make decisions and manage context. Therefore in this paper, we first give formal definition of resource, and propose two key points in resource model from our definition. Next, DRSM is compared with various resource models and allocation algorithms in different areas. Then, we divide resource management approaches into two fundamental parts for discussion, that is, resource specification and resource usage specification. Finally the improved DRSM has been presented.